What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on? Litre/mole Litre/second Moles/litre.second Litre/mole.second TRUE ANSWER : ? YOUR ANSWER : ?
The units of frequency factor in Arhenious equation Depend on temperature, pressure etc. of the reaction Are the same as those of the rate constant Are cycles per unit time Depend on the order of the reaction TRUE ANSWER : ? YOUR ANSWER : ?
The experimentally determined overall order of the reaction, A + B → C + D, is two. Then the Molecularity of the reaction is 2, but the reaction may not be elementary Reaction may be elementary with molecularity of 2 Reaction is elementary but the molecularity may not be 2 Reaction is elementary with a molecularity of 2 TRUE ANSWER : ? YOUR ANSWER : ?
In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO₂ to SO₃ is accomplished by a __________ reaction. Catalytic heterogeneous Non-catalytic heterogeneous Non-catalytic homogeneous Catalytic homogenous TRUE ANSWER : ? YOUR ANSWER : ?
Considering the endotheomic dissociation of CaCO₃ in a closed vessel (CaCO₃ ⇋ CaO + CO₂), the pressure of CO₂ increases, if None of these An inert gas is pumped keeping the temperature constant The temperature is increased A catalyst is added TRUE ANSWER : ? YOUR ANSWER : ?
Most important characteristics of gas-liquid reactors are the Specific inter-facial area Both A and B Liquid hold-up None of these TRUE ANSWER : ? YOUR ANSWER : ?
A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors. None of these Both the conversion as well as concentrations will be different Conversion in both will be the same but concentrations will be different Both conversion as well as concentration are same TRUE ANSWER : ? YOUR ANSWER : ?
For any reaction, we may write conversion as a function of Time Concentration Temperature All of these TRUE ANSWER : ? YOUR ANSWER : ?